(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Publishing Venue

Related People

Abstract

An intermediate entity in an IP network, like a base station, inspects the codec information an INVITE message for a high Quality of Service session and does resource reservation and/or Session Access Control, exclusively based on the information in the INVITE and in the OK messages.

Copyright

Country

Language

This is the abbreviated version, containing approximately
43% of the total text.

INVITE-based resource reservation for multi-codec offer

CE13718N (28431) Jheroen Dorenbosch, Anatoly Agulnik.

Abstract: An intermediate entity in an IP network, like
a base station, inspects the codec information an INVITE message for a high Quality
of Service session and does resource reservation and/or Session Access Control,
exclusively based on the information in the INVITE and in the OK messages.

Future and current system will use SIP for session
setup. To get good Quality of Service,
resource reservation and Call Access Control is needed. A call should only be allowed when sufficient
resources are available.

Resource allocation includes codec negotiation during the
INVITE message sequence that is used to set up a call. Normally one or more codecs are offered in
the initial INVITE message. However, the
initial INVITE may sometimes not contain any codec information and the codec
must be negotiated in the later stages of the call setup.

RFC 3312 discusses a resource reservation method that can handle
a multi-codec offer in an INVITE. This
method waits until the codec choice has been resolved, which results in a late
resource reservation, and requires additional messages that slow down the call
setup. The method of RFC 3312 is shown
below: